1. Department of Physics and Materials Science University of Luxembourg Belvaux Luxembourg
2. Chemistry of Thin Film Materials, IZNF Friedrich‐Alexander University of Erlangen‐Nurnberg Erlangen Germany
3. Materials Research and Technology Department Luxembourg Institute of Science and Technology Belvaux Luxembourg
4. Institute of Micro‐ and Nanostructure Research (IMN) & Center for Nanoanalysis and Electron Microscopy (CENEM), IZNF Friedrich‐Alexander University Erlangen‐Nürnberg Erlangen Germany
5. National Centre for Nano Fabrication and Characterization Kongens Lyngby Denmark